CN2177581Y

CN2177581Y - Guide rail for double X shaped hammer press

Info

Publication number: CN2177581Y
Application number: CN93244159U
Authority: CN
Inventors: 苏光辉
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-11-12
Filing date: 1993-11-12
Publication date: 1994-09-21
Anticipated expiration: 2003-11-12

Abstract

The utility model provides a guide rail for double X-shaped hammer press machine. The guide rail is characterized in that two parallel guide surfaces are arranged at every angle part of a sliding block, the guide surfaces of every angle part are mutually arranged in an X-shaped way, the short guide rail can be individually adjusted, one short guide track and one long frame guide rail are matched with the guide surfaces of every angle part of the sliding block, the long guide rail is the main guide rail, and the short guide rail is the gap holding guide rail. The short guide rail can be individually adjusted, and the yawn between the sliding block guide rail and frame main guide rail when the slide block is at the lower dead point can be adjusted through the adjustment of short guide rail to cause the yawn of each main guide rail to be even, thereby, the horizontal offset is reduced when the sliding block bears eccentric load.

Description

Guide rail for double X shaped hammer press

The utility model proposes a kind of for the guide rail structure of forging press slider guide.This guide rail structure comprises the slide block guide rail of forming a slide block part and is fixed in rack rail and guide rail guiding mechanism on the frame by guide rail bracket.This guide rail is applicable to hot forging equipment such as hotdie forging press, fly press, hydraulic press etc.

The forging press guide rail is that slide block is slider guide and balance eccentrically loaded critical piece when forging when moving back and forth in frame.Commonly used is the X-shaped guide rail, and the X-shaped guide rail respectively has a pair of spigot surface in four bights of slide block, and these spigot surfaces are X-shaped mutually to be arranged, all points to the slide block center a bit.This structure makes slide block parallel with the guide rail spigot surface because of the dilatancy that produced by the rising of workpiece heat conduction temperature at work, thereby this distortion does not influence guide clearance.The gap of X-shaped guide rail is than other form guide rail such as box guide rail etc., and what its guide clearance was adjustable is littler, thereby its guiding accuracy is improved.Germany EUMUCO company has proposed a kind of modified X-shaped guide rail, sees DE3328631 or US Patent No.4596131.Improve X-shaped guide rail structure rigidity by guide rail and frame are made of one, further improve the guiding accuracy and the anti-bias load ability of X-shaped guide rail.

The a pair of spigot surface of each guiding position of X-shaped guide rail can only limit direction of motion of slide block, and slide block retrains less in frame, and slide block is removable, changes uniform in theory four guide clearances thereby rotate.The normal guide clearance major part that takes place focuses on a situation on the guide rail in the use.This is because the design four guide clearance sums of X-shaped guide rail are general all less than the gap sum between slide block and bent axle (or screw rod), the bearing block.The error that unbalance dynamic state in the slide block movement or manufacturing are adjusted etc. all makes slide block be tending towards the deviation theory position.The deficiency of guide rail constraint causes using the middle guide gap to change.When a guide rail relative side slide in big gap bears eccentric load, slide block will produce horizontal offsetting and the rotation of moment, so that slide block guide rail and rack rail are fitted with the offset loading force that contends with.Thereby the forging that makes production produces excessive mismatch.The X-shaped guide clearance all produces harmful effect to the quality of the forging that uses and produce of equipment zero to the labile state that changes between four times of design gaps.

The purpose of this utility model is for forging press provides a kind of novel guide rail structure, is called two X-shaped guide rails.This guide rail structure promptly has the advantage that the distortion of slide block expanded by heating does not influence guide clearance, each guide clearance can be adjusted separately again, it is remained within the design load scope, improving the guiding accuracy and the stability of forging press slide block, and then improve the quality of its forging of producing.

The purpose of this utility model realizes by following structure: there are two spigot surfaces parallel to each other in each bight of slide block, and the spigot surface in four bights is X-shaped mutually to be arranged, all points to about slide block center a bit, constitutes two X-shaped guide frames.Eight rack rails with slide block guide rail cooperating fixing by guide rail bracket are fixed on the frame by guide rail bracket.Have in the rack rail one group totally four take rail as the leading factor, its length covers slide block and range of movement total length thereof.Four guide rails of another group are that the gap keeps guide rail, and its length is about the 1/3-1/2 of slide block length, are positioned at the slide block of slide block when bottom dead centre vertically central authorities or position slightly on the lower side.It can be adjusted separately.And have one to be main guide rail in the rack rail that each bight two spigot surface of slide block cooperate, another is that the gap keeps guide rail.But keep the adjustment adjusting slider of guide rail and the guide clearance of mainframe guide rail by the gap.Make four main guide rail gaps even, and keep its gap stable.Thereby make the guide rail steering capability stable, guiding accuracy improves, because the gap keeps rail length shorter, and the vertical central authorities when being in slide block again and bearing unbalance loading, the offset loading force that it bears is less, and offset loading force is mainly born by main guide rail.

Further explain structure of the present utility model and performance below in conjunction with diagram.

Fig. 1 is the cross-sectional view (seeing I-I among Fig. 2) of slide block and frame

Fig. 2 is the longitudinal section (seeing Fig. 2 II-II) of slide block slide block and frame when being arranged in bottom dead centre.

As shown in the figure, forging press 1 is generally by frame 2, and slide block 3 and power section are formed.Frame 2 is by putting the beams in place 4, and lower bottom base 5 and four columns 6,7,8,9 are formed, and they can be an integral body, also can be combined in to constitute an integral body together.Slide block 3 is driven in frame by bent axle, screw rod or hydraulic cylinder etc. and moves back and forth with the shaping forging.

Guide rail structure comprise on the slide block and be fixed on the frame with 12-19 spigot surface relevant portion.There are two parallel spigot surfaces in each bight of slide block, and slide block guide rail is fixed on the slide block, the spigot surface in four bights is X-shaped mutually and arranges that all the about slide block of sensing center a bit.The guide rail with the cooperation of 12,13,14,15 guide pass on the frame is individually fixed on the guide rail bracket 10,11.The guide rail that cooperates with 16,17,18,19 guide pass on the frame is fixed in guide rail bracket 24,25, on 26,27, these guide rail brackets again by chute and tension and compression bolt 28,29,30,31 respectively with frame 6,7,8,9 and carriage 20,21,22,23 link.

Slide block guide rail carriage and slide block are an integral body, and slide block guide rail is along the vertical total length of slide block.As shown in Figure 2, with 12,13, the rail length that 14,15 guide pass cooperate covers slide block and range of movement total length thereof on the frame.With 16,17, the rail length that 18,19 guide pass cooperate is about the 1/3-1/2 of slide block length on the frame.Be positioned at slide block slide block vertically central authorities or position slightly on the lower side when bottom dead centre, since on the frame with 16, the rail length that 17,18,19 guide pass cooperate is shorter, be in the vertical central authorities of slide block when bottom dead centre bears offset loading force again, thereby it does not bear main offset loading force, and offset loading force is mainly by main guide rail 12,13,14,15 bear.

Guide rail bracket 11 is fixed on the frame, and guide rail bracket 10 can be by regulating bolt 32,33,34, thus 35 regulate its with the gap of the relative position control guide rail mating surface 12,13,14,15 of frame with.Rack rail carriage 24,25,26.27 can move it by regulating bolt 28,29,30,31 adjustings in the frame chute, thereby realize to guide pass 16,17 adjustment in 18,19 gap.

The adjustment of double X-type guide rail is at first adjusted carriage 10 and is made 12,13, the gap of 14,15 guide pass and reach design load, when slide block is positioned at bottom dead centre, by adjusting bolt 28,29,30,31 adjust guide rail bracket 24,25,26 respectively, 27, by guide rail mating surface 16,17,18,19 act on the gap that slide block is regulated slide block on the other side and long guideway, master's spigot surface 12 when making slide block be positioned at bottom dead centre, the gap of 13,14,15 guide pass is even.Because main spigot surface gap distribution is uniform and stable, the guiding accuracy of guide rail and stability improve.

The two X-shaped guide rails that the utility model proposes are suitable for hot forging equipment, this guide rail has slide block and is subjected to the hot dilatancy that causes of conducting of workpiece not influence guide clearance, and each guide clearance can be adjusted separately, and it is controlled within the designing requirement scope, has the guiding good stability, the advantage that guiding accuracy is high.Under same design guide clearance and stiffness of structural member situation, the maximum horizontal of two X-shaped guide rails when bearing unbalance loading offsets and is about the maximum 1/3-1/4 that offsets of X-shaped guide rail.Two X-shaped guide rails all improve than other its guiding accuracy of type guide rail and the guiding stability in existing the use, are more suitable for high accuracy forging and precision forging etc. to the equipment performance requirement.

The above is the principle and the structural behaviour of two X-shaped forging press guide rails, must point out the CONSTRUCTED SPECIFICATION that this guide rail structure is not limited to propose when using herein, can carry out the change of details according to concrete application under the prerequisite of not violating the utility model essence.

Claims

1, a kind of forging press guide rail, form by corresponding guiding position and guiding mechanism thereof on slide block and the frame, it is characterized in that each guiding position, bight slide block guide rail of slide block has two parallel spigot surfaces with rack rail, the spigot surface in each bight is X-shaped mutually to be arranged, all points to about slide block center a bit.

2, guide rail according to claim 1 is characterized in that:

A. slide block guide rail carriage and rack rail carriage and the guide rail plate that is fixed thereon,

B. the slide block guide rail carriage constitutes the part of slide block, and the rack rail carriage is fixed on the frame,

C. each two rack rail cooperating with slide block guide rail of guiding position is fixed on the frame by guide rail bracket, wherein one is long guideway, its length covers slide block and range of movement total length thereof, another is a short lead rail, its length is about the 1/3-1/2 of slide block length, is positioned at slide block slide block vertically central authorities or position slightly on the lower side when bottom dead centre.

3, according to claim 1,2 described guide rails, each the gap sum that it is characterized in that frame long guideway and slide block guide rail can realize by the relative position of adjusting rack rail carriage and frame, the frame short lead rail can be adjusted separately, by of the effect of frame short lead rail to slide block guide rail, the gap of adjustable complete machine frame long guideway and slide block guide rail, thereby can make frame long guideway and slide block guide rail gap when slide block is in bottom dead centre even, so that the forcing press offsetting that forging produces when bearing unbalance loading distortion reduces.